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Demographic and Health Survey 1996-1997 - IPUMS Subset

Bangladesh, 1996 - 1997
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Reference ID
BGD_1996_DHS_v01_M_v02_A_IPUMS
Producer(s)
National Institute of Population Research and Training (NIPORT) [Bangladesh], Mitra and Associates, and Macro International Inc., Minnesota Population Center
Metadata
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Created on
Sep 19, 2018
Last modified
Sep 19, 2018
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36534

Date of respondent's first birth, in century months (C_DOB1STKIDCMC)

Data file: BGD1997-C.dat

Overview

Type: Discrete
Decimal: 0
Start: 323
End: 326
Width: 4
Range: -
Format: Numeric

Questions and instructions

Literal question
215. In what month and year was (NAME) born?
WRITE IN EITHER BENGAL OR ENGLISH DATES, BUT NOT BOTH.
USE CODES AT THE BOTTOM OF THE PAGE FOR MONTHS.

BENGALI 1

MONTH __
YEAR 1___

01 BAISHAK
02 JAISTHA
03 ASHAR
04 SRABAN
05 BADHRA
06 ASHWIN
07 KARTIK
08 AGRAHAYAN
09 POUSH
10 MAGH
11 FALGUN
12 CHOITRA

ENGLISH 2

MONTH __
YEAR 19__

01 JANUARY
02 FEBRUARY
03 MARCH
04 APRIL
05 MAY
06 JUNE
07 JULY
08 AUGUST
09 SEPTEMBER
10 OCTOBER
11 NOVEMBER
12 DECEMBER
Categories
Value Category
9998 Missing
9999 NIU (not in universe)
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.

Description

Definition
DOB1STKIDCMC (V211) reports the century month code (CMC) for the date of the woman's first birth.

The Guide to DHS Statistics (2003) explains the use and calculation of CMC values as follows:

Century month codes (CMC) are particularly important to check consistency of dates, to calculate intervals between events, and to impute dates when the information for an event is missing or partially complete.

Century month codes (CMC) are calculated by multiplying by 12 the difference between the year of an event and 1900. That year was chosen as the reference period because all of the DHS relevant events occurred during the twentieth or twenty-first centuries. The month of the event is added to the previous result.

CMC = (Year - 1900) * 12 + Month

For example, the CMC for June 2002 will be:

CMC = (2002 - 1900) * 12 + 6 = 1230

In other words, 1,230 months have elapsed since January 1900 to June 2002. Based on CMC it is possible to calculate the month and year using the following formulas:

Year = int( ( CMC - 1 )/12 ) + 1900
[int(x) is the integer part of x]
Month = CMC - ( ( Year - 1900 ) * 12 )

concept

Concept
var_concept.title Vocabulary
Fertility Variables -- TOPICS IPUMS
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